shepherd



(No Model.) 2 Sheets- Sheet 1. 0. H. SHEPHERD.

VALVE MECHANISM FOR SEWERAG'E SYSTEMS.

WITNESSES: J @VENTOR: -65? BY g ATTORNEYS.

N, PETEflS. Pnalo-Ljlhogrimr, Washinpon, D. C.

(No Model.) 2 Sheets-Sheet 2.

G. E. SHEPHERD.

VALVE MECHANISM FOR SEWERAGE SYSTEME.

Patented June 12, 1888.

INVBNTOR WITNESSES @JEM I ATTORNEYS.-

u, PETERS. PhoIa-Liihcgflpban Wnhingwu uc Urn'rnn STATES PATENT @rrica CHARLES H. SHEPHERD, OF NElV YORK, N. Y.

VALVE MECHANlSNl FOR SEWERAGE SYSTEMS.

SPECIFICATION forming part of Letters Patent No. 384,396, datocl 5117-12 12, 1888.

Application filed August 9, 1887.

To all whom it may concern:

Be it known that I, CHARLES H. SHEPHERD, of the city, county, and State of New York, have invented a new and Improved Valve Mechanism for Sewerage Systems, of which the following is a specification, reference being had to the annexed drawings, forming a part thereof, in which Figure 1 is a plan view. Fig. 2 is a horizontal section taken on linear min Fig. 3. Fi 3 is a side elevation, partly in section, the section being taken on line y y in Fig. 1. Fig. 4 is an enlarged longitudinal section of thelocking mechanism. Fig. 5 is a front elevation showing the valveholding mechanism with the valve closed. Fig. 6 is a front elevation showing the valve mechanism with the valve. open. Fig. 7 is a plan view of the valve-retarding weight, and Fig. 8 is a plan view of the rod-guide.

Similar letters of reference-indicate corre sponding parts in all the figures.

The object of my present invention is to improve the sewerage system for which Letters Patent No. 36l,456 were granted to me April 19, 1887.

My present invention is designed to provide devices for retarding the closing of the valve at the end of thesewage pipe, to give the contents of the pipe time to escape before the valve closes.

My invention consists in the combination, with a counterweighted valve, of a locking device for holding the valve closed, a float for releasing the locking device, an auxiliary weight adapted to be thrown upon the "alvelever, and locking mechanism for releasing the weight and valve-lever in succession, all as hereinafter more fully described.

To the downwardly-turned end of the sowagepipe A is fitted the valve 13, which is connected by arms a with tberockshaft O, journaled in ears I) projecting from the side of the sewage-pipe. To the rock-shaft O is scoured a lever, D, carrying an adjustable weight, 1:, and provided with an arm, (I, extending beyond the shaft 0.

To the side of the sewage pipe A, opposite the ears I), is attached a case, E, by the strap 6. In the case E is pivoted a latch,f, which projects through a slot in the end of the case Serial No. 246,512. (No model.)

The inner end of the latch f is prolonged beyond its pivot gand provided with a notch, h. In the case E is pivoted a catch-lever, i, the upper end of which engages the notch h in the inner end of the latch f, while thelower end projects through aslot in the bottom of the case in position to be engaged by the cam j. The upper end of the catch-leveri is thrown into engagement with the said latch by means of the spring it, secured to the end of the easing and bearing upon the upper end of the catch lever. The latch f is provided upon one of its sides with a triangular projection, Z, which is engaged by a triangular projection, m, on the upper end of the spring a, secured in the casing. A pin, 0, projects from the side of the latchf through a curved slot, 1), in the side of the casing, in position to be engaged by the arm (3 of the lever D in the manner presently to be described. The can! is se cured to one end ofa shaft, q, journaled in an arm, '2', projecting downward from the casing E, and to the opposite end of the shaft is secured an arm, .9, at right angles to the cam At the side of the sewagepipe A, near the angle thereof, is formed a chamber, F,in which isjournaled a rock-shaft, 13, provided with an arm, a, carrying a float, G. One end of the shaft extends through the wallet the chamber F and is provided with an arm, 1). The arm 12 is connected by arod, in, with one end of a lever, H, fulcrumed on the back ofthe extremiiy of the sewage-pipe, the opposite end of the said lever H being connected by a rod, a, with the arm 8.

To thejournal-box bof the shaft 0 is secured adisk, I, provided with curved slots 0' 0 which are arranged upon opposite sides of a vertical diametrical line of the disk I. To the lever D is attached the curved rod d, which extends half way around the periphery of the disk and is provided at the end adjoining the lever with a fork, e, in which is journaled a rollcr,f, placed in the slot c". Upon the opposite end of the curved rod d is secured a similar fork, 6 carrying a roller, f within the slot c.

The movable weight J is provided with ears 9, between which are journaled the rollers h if, the roller h being arranged within the slot and the roller It being arranged to roll upon the periphery of the disk I. The weight J is provided with a pin, Z, projecting from the face thereof.

To the face of the disk I, on a level with the shaft 0, is pivoted a forked lever, j, provided with a notch, k, and to the face -of the said disk, near the lever j, is pivoted a catch-lever, Z, adapted to engage the notch k in the lever j, the said catch-lever being pressed by a spring, m, also attached to the face of the disk. A lever, 12, pivoted to the face of the disk I, engages the inner surface of the end of the catch-lever Z', and is connected by alink, 0, with a trigger-lever, p, pivoted to the face of the disk I and projecting into the path of the fork 6 To the face of the disk I, above the shaft 0, is pivoted a forked lever, jtprovided with a notch, 7c, and near the lever j" a catchlever, Z similar to that already described, is pivoted, the said lever being acted upon by the spring at and arranged to be moved by a lever, n pivoted to the face of the disk I and extending downward into the path of the arm d of the lever D, and also into the path of the pin t" of the weight J.

The operation of my improved valve mechanism is as follows: The valve B being closed, when the lower end of the sewage-pipe A be comes filled so as to lift the float G, the movement of the float is transferred through the shaft t, arm. a, rod to, lever H, rod a, arm 8, shaft q, and cam j to the catch-lever Z, thus releasing the latch f, which is moved downward by the weight of the valve B and. the superimposed sewage until the apex of the triangular projection Z on the latch f passes the apex of the triangular end of the spring m, when the inclined side of the end of the spring, acting upon the side ofthe triangular projection Z, will cause the latch to drop into its lowest position. The valve B being released, the weight of the sewage turns the valve against the pressure of the weight 0 and causes the rod d to strike the trigger 1), moving the lever a, which withdraws the catch-lever Z from the forked lever j, releasing the pin q, projecting from the weight J, allowing the said weight to fall in a curved line, the movement of the weight being controlled by the curved slot 0 in the periphery of the disk I. \Vhen the pin q reaches the lower end of the lever n the said lever n is turned on its pivot, removing the eatch'lever Z from the forked lever j, thus releasing the fork e on the end of the curved rod cZ adjoining the lever D, allowing the weighted end of the said lever to descend as soon as the sewage has been discharged from the pipe A; but the descent of the weighted end of the lever D is retarded by the engagement of the pin Z, projecting from the weight J ,with the forked lever j,thereby causing the slow closing of the valve B and allowing time for the complete discharge ofthe sewage-pipe. \Vhen the weightJreaches the forked lever j, it engages the fork of the lever and turns the said lever until the notch Zcis engaged by the catch-lever Z, thereby holding the weight in readiness for another opening of the valve B and a repetition of the operation just described.

Having thus fully described my invent-ion, I claim as new and desire to secure by Letters Patent- 1. The combination,with the discharge-pipe provided with a float-chamber and the valve of the sewerage system, of a catch for holding the valve closed, a float placed in the floatchamber for releasing the catch, and mechanism for retarding the closing of the valve, substantially as specified.

2. The combination, in a sewerage system, of the discharge-pipe A, provided with the float-chamber F, the valve B, hinged to the open end of the said pipe and adapted to close it, the latch f, provided with the double-acting spring n, the catch-lever i, cam j, the float G, shaft Z, arm '2), rod to, lever H, rod a, and arm S, intermediate between the said float and the cam-lever substantially as specified.

3. The combination, with the valve B and counterweighted arm D, secured to the pivot of the said valve, of an auxiliary retardingweight, J, the catch it, pawl Z, catch it", pawl Z and the levers n, p, and of, substantially as described.

4. The combination, with the valve B and weighted lever D, connected therewith, of the slotted disk I, curved rod cZ, carrying rollers ff in the slots of the disk I, the weight J, provided with the pin 'Z and rollers h h the forked leversjj, spring-pressed catch-levers Z 1*, the lever n and trigger p, and the lever n, substantially as specified.

5. In a sewerage system, the combination, with the pipe A and valve B, ofthelatchf, provided with the stud o, the weighted lever D, attached to the pivot of the valve B and provided with the arm d, the slotted disk I,curved rod d, carried by the arm D and provided with rollers ff, the auxiliary weight J, the catch pawl Z, lever 11, trigger p, catch k", pawl Z and lever n, substantially as specified.

CHARLES H. SHEPHERD.

Witnesses:

EDGAR TATE, WM. W. LUYSTER. 

